JPH11156796A - Punching method for sheet material and device thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To lengthen the service life of a punching edge, a line edge and a die cylinder by punching a horizontal punching line and a vertical punching line, moving a sheet material obliquely and in parallel toward the downstream side by leaving the sheet material at a reference attitude as it is according to inclined angles of cylinders. SOLUTION: A punching of a required shape is imparted to a sheet material 11 in a process that the sheet material 11 is moved obliquely and in parallel toward the downstream by leaving the sheet material 11 at a reference attitude as it is according to inclined angles of a die cylinder 19 and an anvil cylinder. In this case, a horizontal line 26 parallel to a horizontal punching line 24 is imparted by a horizontal line edge 28 and a vertical line 27 parallel to a vertical punching line is imparted by a vertical line edge 29 at the same time as a punching by a punching edge 16. At this time, the horizontal line edge 28 is gradually abutted on the sheet material 11 over the entire length. Also the vertical line edge 29 is gradually abutted on the sheet material 11 from one end of the longitudinal direction to the other end according to revolution of the die cylinder 19. Therefore, impact load applied to the horizontal line edge 28 and the vertical line edge 29 is small and the service life of the edges 28, 29 can be lengthened.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a punching method for punching a sheet material into a required shape by a punching blade provided in the die cylinder by passing the sheet material between a die cylinder and an anvil cylinder. It concerns the device.

[0002]

2. Description of the Related Art A punching apparatus is preferably used as a means for punching a sheet material such as a single sheet of corrugated cardboard sheet into a required shape and forming a blank or the like serving as a base material of a box that can be assembled and disassembled. I have. This punching device is provided with a die cylinder in which a die in which a punching blade of a required shape is implanted in a curved board is detachably wound, and the die cylinder is arranged with its axis parallel to the die cylinder. An anvil cylinder wound with an anvil made of urethane material that is received in a bite state. Both cylinders are driven in opposite directions by an external drive source commonly connected via a gear train, or each cylinder is independently driven by another external drive source. Therefore, a sheet material represented by a corrugated cardboard sheet horizontally supplied between the two cylinders is pressed forward by the punching blade and the anvil and sent forward, and in this process, the sheet material is punched into a required shape (so-called “ Soft cut ").

In the punching apparatus, in addition to a "soft cut" type in which an anvil made of a urethane material is wound around an anvil cylinder, a stainless steel, aluminum or copper or the like is provided around the outer periphery of a cylinder using an iron-based hard material. Use a steel sheet made of a material softer than the hardness of the cylinder, and use a sheet material by punching the sheet material by contacting the punching blade with the outer peripheral surface of the steel sheet. There is a so-called "hard cut" type in which a sheet material is punched by directly contacting a punching blade with the outer peripheral surface.

[0004]

In the above-mentioned punching device,
The die cylinder is arranged such that the axis of the die cylinder is parallel to a reference line orthogonal to the sheet feeding direction. Therefore, the horizontal punching blades arranged on the die for applying a horizontal punching line parallel to the reference line to the sheet material are also set to be parallel to the reference line. When a sheet material is punched with the horizontal punching blade set as described above, the blade comes into contact with the sheet material at one time over its entire length, so that a large stress is momentarily applied to the die cylinder and the anvil cylinder. Works. When such an impact load is repeatedly applied to the two cylinders, there is a problem that the service life of the bearings and the like of the two cylinders is shortened. Therefore, measures have been taken to increase the mechanical strength of the bearings and the like, but in this case, the apparatus is disadvantageously increased in size and the manufacturing cost is increased. Particularly, in the case of the above-mentioned "hard cut" type, since the lateral punching blade of the die directly contacts the steel plate or the outer peripheral surface of the cylinder, there is a problem that vibration is generated or the blade is damaged.

Further, in a punching apparatus, a die having a ruled blade for a ruled line is planted on the curved board in order to apply a ruled line for folding a box or the like to a sheet material in conjunction with the punching. At this time, it is pointed out that a large impact load is applied to the horizontal ruled blade for forming a ruled line (horizontal ruled) parallel to the reference line as in the case of the horizontal punching blade, and the ruled line is strongly inserted and the ruled line is broken. That is, in the punching device, the cutting edge of the punching blade protruding from the curved board is cut into the anvil, thereby enabling the punching of the sheet material. The blade is inevitably damaged by the cutting edge, and the anvil is inevitably worn at the cutting edge of the anvil due to the damage. And in this case, the distance between the axes of the die cylinder and the anvil cylinder is reduced to ensure the punching,
Although the amount of penetration of the punching blade into the anvil is ensured, at this time, the interval between the ruled blade and the anvil cylinder also becomes small, and therefore the ruled line is strongly inserted and the ruled line is broken. Also, in the case of "hard cut" format,
Over time, the cutting edge of the punching blade becomes round and good punching cannot be performed. At that time, the distance between the axes of the die cylinder and the anvil cylinder is reduced. there were.

[0006] As a result of the wear of only the cutting edge portion of the punching blade in the anvil, irregularities may occur on the surface of the anvil, which may cause a problem that the ruled blade cannot make a good score. In order to solve this problem, the die biting portion of the punching blade with respect to the anvil is changed by shifting the die cylinder in the axial direction. However, the lateral punching blade is parallel to the axis of the cylinder. Good results could not be expected.

[0007]

SUMMARY OF THE INVENTION The present invention has been proposed in view of the problems inherent in the prior art described above, and has been proposed in order to suitably solve the problems. It is an object of the present invention to provide a method and an apparatus for punching a sheet material, which can extend the length of the sheet material and can reduce the weight.

[0008]

[MEANS FOR SOLVING THE PROBLEMS]
In order to suitably achieve the intended purpose, a method of punching a sheet material according to the present invention is directed to a sheet-like sheet having a reference posture in which a front edge in a sheet feeding direction is parallel to a reference line orthogonal to the feeding direction. Material is fed between a pair of oppositely rotating die cylinders and anvil cylinders arranged such that the axis is tilted by a required angle with respect to a reference line, and the sheet material is tilted between both cylinders. A horizontal punching line parallel to the reference line and a vertical punching line parallel to the sheet feeding direction by a punching blade provided in the die cylinder while being obliquely translated toward the downstream side in the reference posture according to the angle. It is characterized by punching out.

In order to solve the above-mentioned problems and appropriately achieve the intended purpose, a method of punching a sheet material according to another invention of the present application is directed to a method of punching a sheet material in which a front edge in a sheet feeding direction is perpendicular to the feeding direction. A sheet material having a reference posture parallel to a reference line is placed between a pair of mutually rotating die cylinders and anvil cylinders arranged such that the axis is inclined by a required angle with respect to the reference line. The sheet material is supplied through a conveying device, and the upstream side of the sheet material transferred to the downstream side by the rotation action of the two cylinders is held by the conveying device in a state where the sheet material is allowed to move in parallel. According to the inclination angle of both cylinders, the cylinder is obliquely translated toward the downstream side while maintaining the reference posture, and in this process, a horizontal punching line parallel to the reference line and a sheet feeding method are parallelized by a punching blade provided on the die cylinder. Characterized in that so as to punch the parallel longitudinal punching lines and.

[0010] In order to solve the above-mentioned problems and to appropriately achieve the intended purpose, a punching method of a sheet material according to still another invention of the present application is directed to a method for punching a sheet material in which a front edge in a sheet feeding direction is perpendicular to the feeding direction. A sheet material having a reference posture parallel to a reference line is formed by a pair of mutually rotating die cylinders and anvil cylinders arranged such that the axis is inclined by a required angle with respect to the reference line. Between the die cylinder and the end located on the end side of the die cylinder that is inclined toward the upstream side in the sheet feeding direction of the cylinder is inclined so as to be the leading side in the rotation direction of the die cylinder. The horizontal punching blade, which passes through the leading end and has a tilt angle with respect to a horizontal base line parallel to the axis set substantially equal to the tilt angle between the axis and the reference line, corresponds to the tilt angle of the die cylinder and the anvil cylinder. While moving the sheet material obliquely toward the downstream side in the reference posture while gradually punching out a horizontal punching line parallel to the front edge from one end in the longitudinal direction to the other end, and into the die cylinder With the vertical punching blades arranged and perpendicular to the horizontal punching blades, the sheet material is obliquely translated in the reference posture according to the inclination angle of the die cylinder and the anvil cylinder, and the side edges perpendicular to the front edge thereof. A vertical punching line parallel to the above is gradually punched from one end to the other end in the longitudinal direction.

In order to solve the above-mentioned problems and to appropriately achieve the intended purpose, a punching method of a sheet material according to still another invention of the present application is directed to a method for punching a sheet material in which a front edge in a sheet feeding direction is perpendicular to the sheet feeding direction. A sheet material having a reference posture parallel to a reference line is formed by a pair of mutually rotating die cylinders and anvil cylinders arranged such that the axis is inclined by a required angle with respect to the reference line. In the meantime, the sheet material is supplied through a conveyance device, and the upstream side of the sheet material transferred to the downstream side by the rotating action of the two cylinders is held by the conveyance device in a state where the parallel movement is allowed. Is moved parallel to the downstream side in the reference posture according to the inclination angle of both cylinders, and in this process, the end disposed on the die cylinder and inclined toward the upstream side in the sheet feeding direction of the cylinder. The end located on the side is inclined so as to be the leading side in the rotation direction of the die cylinder, and the inclination angle with respect to the horizontal base line parallel to the axis through the leading end is substantially equal to the inclination angle between the axis and the reference line. With the same set horizontal punching blade, a horizontal punching line parallel to the front edge of the sheet material is gradually punched from one end to the other end in the longitudinal direction, and the horizontal punching is arranged on the die cylinder. The vertical punching blade perpendicular to the blade is characterized in that a vertical punching line parallel to the side edge perpendicular to the front edge of the sheet material is gradually punched from one end to the other end in the longitudinal direction. .

In order to solve the above-mentioned problems and appropriately achieve the intended purpose, a punching method of a sheet material according to still another invention of the present application comprises a die cylinder and an anvil cylinder rotating in opposite directions. When the axis is positioned at an inclined position inclined by a required angle with respect to a reference line orthogonal to the sheet feeding direction, a reference position in which the front edge in the sheet feeding direction is parallel to the reference line between the two cylinders. By holding the sheet material of the sheet fed through the conveying device in the state in which the upstream side of the sheet material conveyed to the downstream side by the rotation of both cylinders is allowed to move in parallel by the conveying device, A horizontal punching line parallel to the reference line and sheet feeding are performed by a punching blade provided on the die cylinder while being obliquely translated toward the downstream side in the reference posture according to the tilt angle of the cylinder. Punched direction parallel to the longitudinal stamped lines,
When the axes of the two cylinders are positioned in the reference position parallel to the reference line, the sheet material supplied through the transfer device in the reference position between the two cylinders is transferred to the downstream side in the reference position. While moving straight toward, a punching blade arranged in the die cylinder punches a horizontal punching line parallel to a reference line and a vertical punching line parallel to a sheet feeding direction. I do.

[0013] In order to solve the above-mentioned problems and to appropriately achieve the intended object, a sheet material punching apparatus according to another invention of the present application includes a die in which a punching blade is planted on a curved board so as to be detachably wound. A die cylinder that is mounted and driven to rotate in a predetermined direction, and an anvil cylinder that is disposed in parallel with the die cylinder and that is driven to rotate in the opposite direction to the cylinder. In a punching apparatus for feeding a sheet material of a single sheet in a reference posture in which a front edge of the sheet material is parallel to a reference line orthogonal to the feeding direction, and performing punching of a required shape on the sheet material via the punching blade, A die cylinder and an anvil cylinder are arranged such that their axes are inclined by a required angle with respect to the reference line, and the die is configured to cut a horizontal punching line parallel to a front edge of a sheet material. And a vertical punching blade for punching a vertical punching line parallel to a side edge orthogonal to the front edge of the sheet material perpendicular to the horizontal punching blade, wherein the die for the die cylinder is a die in the horizontal punching blade. The end located on the end side inclined to the upstream side in the sheet feeding direction of the cylinder is
Wound in a state of being inclined so as to be on the leading side in the rotation direction of the cylinder, the inclination angle of the horizontal punching blade with respect to a horizontal base line passing through the leading end of the horizontal punching blade and parallel to the axis is defined by the axis and the reference line. The inclination angle of the vertical punching blade with respect to a vertical base line orthogonal to the horizontal base line through the rotational direction leading end of the die cylinder in the vertical punching blade is substantially the same as the inclination angle of the axis and the reference line. The conveyance device that supplies the sheet material in a reference posture between the die cylinder and the anvil cylinder is set to be substantially the same as the inclination angle of
When the sheet material is conveyed while being pinched by both cylinders, the sheet material is configured to allow parallel movement.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, a preferred embodiment of the method and apparatus for punching sheet material according to the present invention will be described.
This will be described below with reference to the accompanying drawings.

FIG. 1 and FIG. 2 are schematic structural views in which a punching apparatus 10 according to an embodiment is employed in a printer die cutter, which is a typical example of a corrugated sheet processing apparatus. This processing apparatus is capable of converting a sheet material 11 represented by
A plurality of sheets for performing required printing on the sheet material 11 are provided on the downstream side in the sheet feeding direction of the sheet feeding device 12 for feeding and feeding one by one.
(Three in the embodiment) printer units 13 are arranged,
Downstream of the printer unit 13, a sheet conveying device 14 and a punching device 10 for punching a sheet material 11 on which required multicolor printing has been performed are arranged and configured.
The machine centers C ₁ and C ₂ of the sheet feeding device 12 and each printer unit 13 are aligned and coincident with the sheet feeding direction P, and the sheet material 11 supplied from the sheet feeding device 12 is positioned at the center (sheet width direction). In general, printing is performed by passing through each printer unit 13 in a state where the center in the direction intersecting the feeding direction P coincides with the machine centers C ₁ and C ₂ . However, the machine center C of the sheet feeding device 12
In some cases, the center of the sheet material 11 is used without being aligned with the center in the sheet width direction. Even in this case, the center of the sheet width direction and the corresponding center of the printing plate in the printer unit 13 are matched.

The punching device 10 has a sheet feeding direction P
A punching blade 16 having a required shape is bent between a pair of frames 15, 15 separated in a direction intersecting with the curved board 1 in a vertical relationship with a path line of the sheet material 11 interposed therebetween.
A die cylinder 19 in which a die 18 implanted in the die 7 is detachably wound, and an anvil cylinder 21 in which a urethane material anvil 20 for receiving the cutting edge of the punching blade 16 in a biting state is wound (see FIG. 4). the axis L ₁ is rotatably disposed in parallel.

The two cylinders 19 and 21 are connected via a gear train (not shown), and are controlled by an independent motor 23 independent of a main drive motor 22 for driving the sheet supply device 12, the printer units 13 and the sheet transport device 14. The two cylinders 19 and 21 are configured to be rotationally driven in mutually opposite directions via a gear train. Accordingly, the sheet material 11 horizontally fed between the two cylinders 19 and 21 via the sheet conveying device 14 is nipped by the punching blade 16 and the anvil 20 and sent to the downstream side. 11 is punched in a required shape. The machine center C ₃ of the punching device 10, machine center C ₁ of the sheet supply apparatus 12 and the printer unit 13, C ₂
Is set so as to align with the sheet feeding direction P (see FIG. 2).

In the embodiment, the sheet material 11 has a long side.
Is formed in a rectangular shape in which the (front edge and Koentan) 11a and the short side (both side edges) 11b perpendicular, parallel to the reference line L ₂ of the long side 11a is perpendicular to the direction P in the sheet feeding, and Short side 1
1b is supplied to the punching device 10 in a reference posture parallel to the sheet feeding direction P. As the anvil cylinder 21, in addition to the above-mentioned "soft cut" type, a steel plate made of a material softer than the cylinder hardness such as stainless steel, aluminum or copper is provided on the outer periphery of a cylinder using an iron-based hard material. The sheet material is punched by abutting the punching blade against the outer peripheral surface of the steel sheet, or the sheet is formed by directly abutting the punching blade on the outer peripheral surface of the cylinder without winding the steel plate. A so-called "hard cut" type in which a material is punched may be employed.

The opposing surfaces of the pair of frames 15, 15 are inclined parallel to the sheet feeding direction P at a required angle, and the two cylinders 1 disposed between the two frames 15, 15 are parallel.
Axis L ₁ of the 9 and 21 is set to be inclined by a required angle theta ₁ upon a plane observed with respect to the reference line L ₂
(See FIG. 5). And, in this way, both cylinders 19, 21
The sheet material 11 supplied horizontally through the sheet conveying device 14 is inclined by the
As shown in FIG. 8, when the cylinders 19 and 21 are pinched and sent by the anvil 20 to the downstream side, they are obliquely translated toward the downstream side in the reference posture in accordance with the inclination angles of the cylinders 19 and 21. The inclination angle theta ₁ die cylinder 19 and anvil cylinder 21 is preferably set between 0.5 to 10 °. In the embodiment, both cylinders 19, 21
The (tilt angle θ ₁ ) is such that the shaft end on the drive side (the side where the independent motor 23 is disposed) is inclined away from the sheet conveying device 14 in FIG. It may be inclined in a direction away from the camera.

The curved board 17 of the die 18 is curved in an arc shape with substantially the same inner diameter as the outer periphery of the die cylinder 19, and has a horizontal base line L ₃ parallel to an edge crossing the curved direction. but it is positioned in the cylinder 19 in a state where the parallel to the axis L ₁ of the die cylinder 19 (see FIGS. 6 and 7). The curved board 17 is provided with a plurality of mounting holes 17a at positions deviating from the planting positions of the punching blades 16, and the die cylinder 19 is provided with a plurality of mounting holes at required intervals in the axial and circumferential directions. 48 are formed, and the curved board 17 is configured to be fixed by screwing bolts (not shown) inserted through the plurality of mounting holes 17 a into the mounting holes 48 of the corresponding die cylinder 19. (See FIG. 10). The position where the mounting hole 17a is formed corresponds to the horizontal punching line 2 on the front edge side of the sheet material 11 in the curved board 17 fixed to the die cylinder 19 via the mounting hole 17a.
When the longitudinal center C of 4 to stamped horizontal punching blade 16a has come into punching position of the sheet material 11 is provided at a position to match said center C with the machine center C ₃ of the punching device 10 (FIG. 9). The mounting hole 4 of the die cylinder 19
The reference numeral 8 is provided in a required pattern on substantially the entire outer periphery so as to be able to cope with a change in the dimensions and the like of the curved board 17 when the order is changed.

Among the punching blades 16 implanted on the curved board 17, a horizontal punching blade 16a for applying a horizontal punching line 24 to the sheet material 11 parallel to the reference line L ₂ (long side 11a).
As shown in FIG. 5, the end A located on the end side (the operation side in FIG. 2) of the die cylinder 19 that is inclined to the upstream side in the sheet feeding direction is connected to the leading side in the rotation direction of the die cylinder 19. The inclination angle θ ₁ ′ with respect to the horizontal base line L ₃ passing through the leading end A is set to be substantially the same as the inclination angle θ _{1 of the} axis L ₁ with respect to the reference line L ₂ .

That is, the axis L ₁ of the die cylinder 19 and the anvil cylinder 21 is inclined with respect to the reference line L ₂ , and the horizontal punching blade 16 a of the die 18 wound around the die cylinder 19 is moved to the die cylinder 19. The end A, which is located on the end side inclined to the upstream side in the sheet feeding direction, is inclined so as to be the leading side in the rotation direction of the die cylinder 19, so that the horizontal supply is performed between the two cylinders 19, 21 in the reference posture. After that, the horizontal punching blade 16a is gradually abutted from one end side to the other end side in the longitudinal direction of the sheet material 11 which is obliquely translated toward the downstream side in the reference posture and punched out. You. Thereby, the horizontal punching blade 16
By contacting the sheet material 11 with the sheet material 11 at one time over its entire length, a large stress is prevented from being applied to both the cylinders 19 and 21 and the horizontal punching blade 16a itself.

Among the punching blades 16 implanted on the curved board 17, a vertical punching blade 16b for applying a vertical punching line 25 orthogonal to the horizontal punching line 24 to the sheet material 11 is as follows.
As shown in FIG. 5, it is disposed on the curved board 17 so as to be orthogonal to the horizontal punching blade 16a. That is, in a state in which the curved board 17 and a transverse base line L ₃ and the axis L ₁ is wound so as to be parallel to the die cylinder 19, the vertical punching blade 16b
The inclination angle theta ₁ "of the vertical punching blade 16b with respect to the longitudinal baseline L ₄ that is perpendicular to the horizontal base line L ₃ through the rotation direction leading end B of the die cylinder 19, the axis L ₁ and the reference line L
₂ becomes substantially the same inclination angle theta ₁ and the. By arranging the vertical punching blades 16b in this manner, the sheet material 11 that is obliquely translated toward the downstream side in the reference posture can be moved.
Then, the vertical punching blade 16b is gradually abutted from one end to the other end in the longitudinal direction to perform punching. As a result, a vertical punching line 25 orthogonal to the horizontal punching line 24 punched by the horizontal punching blade 16a is punched in the sheet material 11.
(See FIG. 3).

The arrangement of the punching blades 16 in the die 18 will be described in more detail.
Is positioned spirally with the die 18 wound around a die cylinder 19, and the vertical line from the cutting edge to the cutting edge at each portion in the extending direction of the horizontal punching blade 16a is always the axis L of the die cylinder 19. It is set to intersect (orthogonal) with ₁ . Accordingly, the load applied to the cutting edge of the lateral punching blade 16a can be always received by the axis of the die cylinder 19, and the occurrence of vibration or the like due to the eccentric load applied to the cylinder 19 can be prevented. In addition, vertical punching blade 16b
Is positioned spirally with the die 18 wound around a die cylinder 19, and the vertical line extending from the cutting edge to the blade base at each portion in the extending direction of the vertical punching blade 16 b is always the axis of the die cylinder 19. It is set to intersect with L _1. That is, even in the vertical punching blade 16b, the load applied to the cutting edge can always be received by the axis of the die cylinder 19, and the cylinder 19 can be prevented from vibrating.

When the curved board 17 is wound around the die cylinder 19 which is arranged obliquely as described above,
The sheet material 11 is positioned on the basis of the longitudinal center C of the horizontal punching blade 16a on the front side in the rotation direction for punching the horizontal punching line 24 on the frontmost edge side (downstreammost side). That is,
The center C in the longitudinal direction of the front side punching blade 16a (see FIG. 9)
But when arriving at the punching position of the sheet material 11 by the rotation of the die cylinder 19, said center C coincides with the sheet width direction center of the machine center C ₂ or Shirushiban center of the printer unit 13, i.e. the sheet material 11 Is positioned as follows. As a result, the sheet material 11 supplied to the punching device 10 in a state where the center in the sheet width direction coincides with the mechanical center C ₂ of the printer unit 13 or the center of the printing plate includes:
Punching can be performed at an appropriate position corresponding to the printing location. Also, the center C in the longitudinal direction of the front-side horizontal punching blade 16a.
And the center of the sheet material 11 in the sheet width direction are matched, so that the width of the trim portions 44 on both sides in the width direction generated when the sheet material 11 is punched can be made uniform.
(See FIG. 3).

The curved board 17 has a sheet material 11
Ruler blade 28 and vertical ruler blade 29 for applying horizontal ruler 26 and vertical ruler 27 to
Is planted. And the horizontal ruled blade 28 is the horizontal punched blade 16
a, the vertical ruled blade 29 is disposed in parallel with the vertical punching blade 16b, and the horizontal ruled blade 28 has one end in the longitudinal direction (extending direction) like the horizontal punched blade 16a. , The sheet material 11 is gradually brought into contact with the sheet material 11 to form a ruled line. The conditions for setting the horizontal ruled blade 28 and the vertical ruled blade 29 on the curved board 17 are the same as those for the horizontal punched blade 16a and the vertical punched blade 16b. That is, the horizontal ruled blade 28 is spirally positioned in a state where the die 18 is wound around the die cylinder 19, and the vertical line from the cutting edge to the blade base at each portion of the horizontal ruled blade 28 in the extending direction is always the die. It is set to intersect (orthogonal) with the axis L ₁ of the cylinder 19. A vertical ruled blade 29 implanted on the curved board 17 so as to be orthogonal to the horizontal ruled blade 28 is spirally positioned with the die 18 wound around a die cylinder 19, and the vertical ruled blade 29 The vertical line from the cutting edge toward the cutting edge at each position in the existing direction is set to always intersect with the axis L ₁ of the die cylinder 19.

As shown in FIG. 1, each of the printer units 13 constituting the processing apparatus has a printing cylinder 3 on which a printing plate (not shown) is wound with a pass line of the sheet material 11 interposed therebetween.
0 and the impression cylinder 31 are arranged so as to rotate in mutually opposite directions, and an ink transfer mechanism 32 is arranged on the side where the printing cylinder 30 is arranged. The printing cylinder 30 of the printer unit 13 is set to be on the opposite side (the lower side in the figure) to the position where the die cylinder 19 is provided in the punching device 10. When the relationship between the printing cylinder 30 and the impression cylinder 31 in the printer unit 13 is upside down (overprinting), the relationship between the die cylinder 19 and the anvil cylinder 21 of the punching device 10 is also arranged upside down. Is done. However, when there is only the punching blade 16 (when there is no ruled line blade such as the horizontal ruled blade 28 or the vertical ruled blade 29), the printing cylinder 30 and the die cylinder 19 can be arranged on the same side.

At the downstream side of the most downstream printer unit 13, two sheet conveying devices 14 of the same construction are arranged in series, and the sheet material 11 on which required printing is performed by both conveying devices 14 is punched out. 10. Each sheet conveying device 14 includes an air chamber 33 disposed above the sheet path line, and the air chamber 33 has a duct 3 communicating with suction means such as a blower (not shown).
4 is connected, and the inside of the air chamber 33 is set to a negative pressure state by operating the suction means. Air chamber 33
A plurality of openings 33a are opened in a required pattern as shown in FIG. Also, inside the air chamber 33,
A plurality of feed rollers 35 as rotatable driving members are rotatably disposed, and each feed roller 35 is positioned with its outer peripheral surface protruding downward from a corresponding opening 33a. That is, by bringing the upper surface of the sheet material 11 into contact with the feed roller 35 by the suction force due to the negative pressure of the air chamber 33, the feed force due to the rotation of the feed roller 35 is applied to the sheet material 11 and conveyed. Note that, in the sheet conveying device 14, since the upper surface of the sheet material 11 not printed by the printer unit 13 is suction-held and conveyed, the sheet material 11 is conveyed.
The sheet material 11 can be conveyed without soiling the printing surface.
Therefore, when the printing by the printer unit 13 is overprinting, the sheet conveying device 14 is configured to adsorb and hold the lower surface of the sheet material 11 and convey it, contrary to the embodiment.

The air chamber 3 in the sheet conveying device 14
The negative pressure formed at 3 is set to a value that allows the punching device 10 to obliquely translate the sheet material 11 toward the downstream side. Thereby, the sheet material 11
The material 11 is configured to be able to perform accurate punching while allowing a smooth translation of the material 11.

As shown in FIG. 2, the sheet feeding device 12, the printer units 13 and the sheet conveying device 14 are connected via a gear train 36, and each mechanism is rotated by a main drive motor 22. You. The main drive motor 22 and the independent motor 23 for driving the punching device 10 are driven and controlled by a control means 37, and are sent out one by one to the printer unit 13 at a required timing by the sheet feeding device 12 toward the printer unit 13. After the necessary printing is performed on the set sheet material 11 at a preset position by each printer unit 13, the sheet conveying device 1
4 and is fed horizontally to the punching device 10 via
The punching device 10 is set so that a portion corresponding to the position where the printing of the sheet material 11 is performed is accurately punched.

A vibration conveyor 38 and a stacker 39 are arranged in series on the downstream side of the punching device 10, and the products punched into a required shape by the punching device 10 are passed through the vibration conveyor 39 through the stacker 3.
9. In addition, the punching device 1
Since the sheet material 11 punched at 0 is obliquely translated toward the downstream side as described above, the sheet material 11 of the sheet conveying device 14, the printer unit 13, and the sheet machine center C _1, C ₂
And the vibration conveyor 38 and the stacker 3
The machine center 9 is displaced by the amount of translation of the sheet material 11.

[0032]

Next, the operation of the punching device according to the above-described embodiment will be described. The sheet material 11 supplied one by one to the printer unit 13 at a required timing by the sheet supply device 12 driven by the main drive motor 22 has a center in the sheet width direction at the mechanical center C _{2 of the} printer unit 13 or The reference position matches the center of the printing plate. The sheet material 11 is subjected to required printing at a position set in advance by each printer unit 13. Then, the printed sheet material 11 is conveyed to the downstream side by the rotational force of the feed roller 35 in a state where the upper surface on which the printing is not performed is sucked and held by the sheet conveying device 14.

As shown in FIG. 3, the long side 11a of the sheet material 11 supplied horizontally one by one between the die cylinder 19 and the anvil cylinder 21 via the sheet conveying device 14 has a reference line L _2. And the short side 11b is parallel to the sheet feeding direction P. In other words, the horizontal punching line 24 applied to the sheet material 11
3 (shown by a two-dot chain line in FIG. 3) is the reference line L ₂
The sheet material 11 is supplied in a posture parallel to the sheet material.

The sheet material 11 horizontally fed in a reference posture between the two cylinders 19 and 21 driven to rotate in opposite directions by the independent motor 23
6 and the anvil 20 to be transported downstream. At this time, since the upstream side of the sheet material 11 is held by the sheet conveying device 14 in a state of allowing the parallel movement, the sheet material 11 is, as shown in FIG.
In accordance with the inclination angle of both cylinders 19 and 21, the cylinders are obliquely translated toward the downstream side in the reference posture, and in this process, the sheet material 11 is punched in a required shape. That is, with respect to the horizontal punching blade 16a in the die 18, one leading end A in the longitudinal direction of the punching blade 16a comes into contact with the sheet material 11 to start punching, and with the rotation of the die cylinder 19, the other trailing edge. The horizontal punching blade 16a gradually comes into contact with the sheet material 11 toward the end to perform punching. As described above, with respect to the die cylinder 19, which is arranged obliquely at an angle theta ₁ with respect to the reference line L _2, the cylinder 19
The end A located on the end side of the die cylinder 19 that is inclined toward the upstream side in the sheet feeding direction of the die cylinder 19 becomes the leading side in the rotation direction of the die cylinder 19. The horizontal punching line 24 punched by the horizontal punching blade 16a on the sheet material 11 that moves obliquely toward the downstream side by inclining by substantially the same angle θ ₁ ′ as shown in FIG. It is parallel to the line L ₂ (long side 11a).

The vertical punching blade 1 of the die 18
For 6b, one leading end B in the longitudinal direction of the punching blade 16b abuts on the sheet material 11 to start punching,
With the rotation of the die cylinder 19, the vertical punching blade 16b gradually comes into contact with the sheet material 11 toward the other trailing end to perform punching. In this vertical punching blade 16b, since it is orthogonal to the horizontal punching blade 16a, the vertical punching line punched by the vertical punching blade 16b on the sheet material 11 that moves obliquely in the reference posture toward the downstream side. 25 is parallel to the sheet feeding direction P (short side 11b) as shown in FIG.

As described above, the center C in the longitudinal direction of the front-side horizontal punching blade 16a is aligned with the center in the sheet width direction of the sheet material 11 when the die cylinder 19 rotates to reach the punching position of the sheet material 11. Since they are positioned so as to match, the printing position does not shift in the width direction with respect to the punching position, and the width of the trim portions 44 on both sides in the width direction generated when the sheet material 11 is punched becomes uniform. . Further, as shown in FIG. 10, the horizontal punching blade 16a and the vertical punching blade 16b of the die 18 are set so as to face positions where they do not interfere with the mounting holes 48 of the die cylinder 19, so that each punching blade 16a, 16b Is securely supported on the outer peripheral surface of the die cylinder 19 over its entire length. Therefore, when the sheet material 11 is punched, it is possible to prevent a situation where the punching blades 16a and 16b fluctuate in the radial direction so that reliable punching cannot be performed. Double punching blade 16
a, 16b and the mounting hole 48 are defined by the curved board 1
7 is determined by bolting the mounting holes 17a provided in the corresponding to the appropriate mounting holes 48, respectively.

That is, the horizontal blanking line 2 is formed on the sheet material 11.
4 does not come into contact with the sheet material 11 at one time over its entire length, but gradually comes into contact with the sheet material 11. Therefore, a large stress (impact) is applied to the die cylinder 19, the anvil cylinder 21, and the horizontal punching blade 16a itself. Force) is not added. Therefore, the service life can be extended without increasing the mechanical strength of the bearings and the like of the cylinders 19 and 21, and the size and cost can be reduced. Also die 18
Also, it is not necessary to increase the thickness of the curved board 17 in order to increase the support strength of the horizontal punching blade 16a or to attach a support for preventing the blade from falling down, so that the cost of the die 18 itself is reduced and the maintenance cost is reduced. Less is needed. Further, the horizontal punching blade 16a and the vertical punching blade 16b
In that each vertical line is set to intersect the axis L ₁ of the die cylinder 19, you can receive the load applied to the horizontal punching blade 16a and the vertical punching blade 16b always axis of the die cylinder 19, the cylinder It is possible to prevent the occurrence of vibration or the like due to the application of a load in the eccentric direction to 19.
Thus, the support structure for the die cylinder 19 can be simplified.

Simultaneously with the punching by the punching blade 16,
The horizontal ruler blade 28 applies a horizontal rule 26 parallel to the horizontal punching line 24 and the vertical ruler blade 29 applies a vertical rule 27 parallel to the vertical punching line 25. At this time, the horizontal ruled blades 28 of the die 18 gradually come into contact with the sheet material 11 over the entire length thereof without contacting the sheet material 11 at one time. Can be prevented from occurring. Also, the vertical ruled blade 29 of the die 18 gradually contacts the sheet material 11 from one end in the longitudinal direction to the other end as the die cylinder 19 rotates. Furthermore, the impact load applied to the horizontal ruled blade 28 and the vertical ruled blade 29 is small, and the service life of the blades 28 and 29 can be extended. In the embodiment, the punching device 10 is configured to be driven by an independent motor 23 that is different from the main drive motor 22 that drives the sheet conveyance device 14, the printer unit 13, and the sheet supply device 12 on the upstream side. Vibration or the like generated by the punching device 10 can be prevented from being transmitted to another mechanism. Further, since the sheet material 11 can be supplied to the punching device 10 in the reference posture, each device located on the upstream side of the punching device 10 can have a conventionally used configuration. It can be introduced without major equipment changes.

Since the horizontal punching blade 16a of the die 18 is helically positioned on the outer periphery of the die cylinder 19, the horizontal punching blade 16a is axially straight with respect to the anvil 20 of the anvil cylinder 21. Do not cut into Therefore, by shifting the anvil cylinder 21 in the axial direction, it is possible to change the cutting edge of the lateral punching blade 16a with respect to the anvil 20. That is, it is possible to prevent the lateral punching blade 16a from biting into the same place at all times, and to prolong the service life of the anvil 20.
Further, since only the same portion of the anvil 20 can be prevented from being worn and can be evenly worn, it is possible to prevent a bad score or a broken ruled line due to the occurrence of unevenness on the surface of the anvil. Furthermore, since the horizontal punching blade 16a is inclined (helically positioned) in the circumferential direction of the anvil 20, when the horizontal punching blade 16a cut into the anvil 20 separates, scraps of the anvil 20 are scraped out. It works.
Since the vertical punching blade 16b of the die 18 is also configured to be inclined with respect to the sheet feeding direction P,
As in the case of the horizontal punching blade 16a, it has the function of preventing the anvil 20 from being biased and scraping off scum.

The sheet material 11 punched by the punching device 10 is placed on the vibration conveyor 3.
8, the sheet moves in parallel with the sheet feeding direction P, and after the waste is separated by the conveyor 38, the waste is stacked on the stacker 39.

[0041]

12 and 13 show another embodiment of the sheet conveying apparatus. The sheet conveying apparatus 40 shown in FIG. 12 has a pair of upper and lower sheets sandwiching a pass line of the sheet material 11. The feed rolls 41, 41 are rotatably arranged, and the two rolls 41, 41 are driven to rotate in opposite directions so that the sheet material 11 is supplied horizontally between the die cylinder 19 and the anvil cylinder 21. Be composed. Further, the sheet conveying device 42 shown in FIG. 13 has a pair of endless belts 43, 43 movably disposed above and below the path line of the sheet material 11.
The sheet material 11 is horizontally fed between the die cylinder 19 and the anvil cylinder 21 by driving the sheet materials 3 in mutually opposite directions. In any configuration, the pinching force of the sheet material 11 by the feed rolls 41, 41 or the endless belts 43, 43 is set to a value that allows the sheet material 11 to move in parallel when passing through the punching device 10. Have been.

Even when the sheet conveying devices 40 and 42 according to the other embodiment are used, the punching device 10
Thereby, the horizontal punching line 24 and the vertical punching line 25 can be appropriately punched in the sheet material 11 that moves obliquely in parallel with the reference posture toward the downstream side. It is also possible to adopt a configuration in which the air chamber and the endless belt are combined, the sheet material is brought into contact with the endless belt by a negative pressure formed in the air chamber, and the sheet material is conveyed by running the belt.

In the above embodiment, in order to equalize the width of the trim portions 44 on both sides in the width direction generated when the sheet material 11 is punched, when the curved board 17 is wound around the die cylinder 19, Although the description has been given of the case where the positioning is performed with reference to the center C in the longitudinal direction of the horizontal punching blade 16a, the center C may be made to coincide with the center in the sheet width direction by another method. For example, as shown in FIG. 14, the die cylinder 19 is pivotally supported so as to be movable in the axial direction with respect to the frames 15 and 15, and an adjusting screw 45 rotatably disposed at the axial end of the cylinder 19 is provided with a frame 15.
Into a nut 47 fixed via a housing 46. By rotating the adjusting screw 45 in a required direction to move and adjust the die cylinder 19 in the axial direction, the center of the curved board 17 wound at an arbitrary position of the cylinder 19 in the longitudinal direction of the front side horizontal punching blade 16a. When C reaches the punching position, it can be positioned so as to coincide with the center in the sheet width direction. That is, in this case, there is no need to care about the position where the horizontal punching blade 16 a is planted with respect to the curved board 17 and the position where the curved board 17 is wound around the die cylinder 19. When the movement of the die cylinder 19 is adjusted, the movement amount and the like may be stored in the control means 37, and the stored data may be fed back next time.

Instead of moving and adjusting the die cylinder 19 in the axial direction, the whole of the punching device 10 can be moved or adjusted, or the center C in the longitudinal direction of the horizontal punching blade 16a provided on the die cylinder 19 can be adjusted. The punching device 1
This can be dealt with by changing the feeding position of the sheet material 11 supplied to 0 in the width direction. When the feeding position of the sheet material 11 is changed, the printer unit 13 and the sheet feeding device 12 themselves are configured to be movable and adjustable, and the machine centers C ₁ and C ₂ are adjusted in position and the sheet feeding device is adjusted. 12
In the printer unit 13, the print cylinder 30 is configured to be movable in the axial direction in the same manner as the mechanism for moving the die cylinder 19, or to adjust a side guide or the like that holds both widthwise sides of the sheet material 11. Adjust. Further, in the printer unit 13, it is possible to cope with changing the mounting position of the printing plate to the cylinder 30 without adjusting the unit 13 and the printing cylinder 30. When the feeding position of the sheet material 11 is changed in this manner, the moving amount of the side guide and the printing cylinder 30 is stored in the control unit 37, and the stored data can be fed back next time. is there.

Here, the shapes of the vertical and horizontal cutting blades 16a and 16b and the vertical and horizontal ruled blades 28 and 29 implanted in the die 18 are limited to those for punching a rectangular blank as in the embodiment. Instead, it is formed according to various types of blanks. As shown in FIG. 15, when two blanks are punched from one sheet material 11, punching blades 16, 16 having the same shape are arranged in parallel in the longitudinal direction of the curved board 17. When a plurality of punching blades 16 are provided in this manner, the sheet material 1
1 is set as an imaginary line of the length between the end portions of the group of blades that are aligned with and aligned with the two horizontal punching blades 16a, 16a that punch out the horizontal punching lines 24, 24 on the front end side; The curved board 17 is positioned on the die cylinder 19 with reference to the longitudinal center C ′ of the imaginary line. That is, when the center C ′ in the longitudinal direction of the imaginary line arrives at the punching position of the sheet material 11 with the rotation of the die cylinder 19, the center C ′ is supplied to the sheet material 11 supplied from the sheet conveying device 14. (Printer unit 1)
It is positioned third machine center C ₂ or Shirushiban centered match) to such. Thereby, printing by the printing plate arranged on the right and left in the printer unit 13 is applied, is fed to the punching device 10 with its sheet width direction center coincides with the machine center C ₂ or Shirushiban center of the printer unit 13 The sheet material 11 can be reliably punched by the punching blades 16, 16 at appropriate positions on the left and right with respect to the center in the sheet width direction. Also in this case, the widths of the trim portions on both sides in the width direction generated by punching two blanks from the sheet material 11 are uniform.

When three or more blanks are punched from one sheet material 11, the die 18 is similarly positioned with respect to the die cylinder 19. In addition, as the adjustment method for matching the center C 'of the virtual line with the center in the sheet width direction, the various methods described above can be implemented. Further, according to the relationship between the inclination angle θ ₁ ″ of the vertical punching blade 16 b and the pitch of the mounting holes 48 provided in the die cylinder 19, as described above, two or three or more products can be formed from one sheet material 11. in the case where punching, the center C of the imaginary line 'if vertical punching blade 16b parallel lines through the overlapping mounting holes 48 of the die cylinder 19, said center C' and machine center C ₃ of the punching device 10 Is shifted so that the curved board 17 is attached to the die cylinder 19 (see FIG. 15).

Here, depending on the type and specification of the sheet material 11, it may not be necessary to tilt the horizontal punching blade 16a as described above. Therefore, for example, as shown in FIGS. 16 and 17, the punching device 10 is configured such that the axis L _{1 of the} cylinders 19 and 21 is inclined with respect to the reference line L ₂ (FIG. 16), and the axis L ₁ is reference posture to become parallel to the reference line L ₂ (FIG. 17) and the positioning can be changed to configure a, depending on the type and specifications of the sheet material 11 may be arbitrarily changed the posture of the punching device 10. In this alternative embodiment, the punching device 10 is configured so that it can swing horizontally about a fulcrum F of one frame 15 and the positioning cylinder 4 is mounted on the other frame 15.
Nine piston rods 49a are connected. In other words, the punching device 10 can be positioned between the inclined posture and the reference posture by urging the positioning cylinder 49 in the forward and reverse directions. When the punching device 10 is in the reference posture as shown in FIG.
Punching blade 50 in the die 18 which is disposed in the vertical punching blade 50b that together with the horizontal punching blade 50a is set parallel to the said horizontal base line L _3, perpendicular to the lateral punching blade 50a
Is set in parallel with the sheet feeding direction P. The sheet material 11 supplied to the punching device 10 in the reference position
The horizontal punching line 24 and the vertical punching line 25 are punched by the punching blade 50 while being moved straight downstream in the posture. As a means for changing the punching device 10 between the inclined posture and the reference posture, various mechanisms other than the positioning cylinder can be adopted.

In the embodiment, the die cylinder and the anvil cylinder are driven to rotate by one independent motor. However, each cylinder is driven to rotate by a separate motor, or a sheet feeding device, a printer unit, and the like are driven. The main drive motor may be connected to the main drive motor using a gear, a line shaft, or the like, and may be driven to rotate. Further, in the embodiment, the punching blade for performing rectangular punching on the sheet material has been described as an example, but the punching shape is not limited to the rectangular shape, and may be a shape including various flaps and the like. Good. Then, the horizontal punching blade and the vertical punching blade in the punching blades installed according to various punching shapes need only be positioned in the above-described settings.

[0049]

As described above, according to the method and the apparatus for punching sheet material according to the present invention, the front edge of a sheet fed in a reference position parallel to a reference line orthogonal to the sheet feeding direction is provided. By punching the sheet material while obliquely translating the sheet material obliquely toward the downstream side in the reference posture with the die cylinder and the anvil cylinder arranged so that the axis is inclined by the required angle with respect to the reference line, the die cylinder A horizontal punching line parallel to the reference line and a vertical punching line parallel to the sheet feeding direction can be punched by the punching blades disposed in the sheet feeding direction. In this case, when the sheet material is punched by the horizontal punching blade in the punching blade, the entire length of the blade does not come into contact with the sheet material at once, and the stress applied to the horizontal punching blade can be reduced. Further, since a large impact load is not applied to the horizontal punching blade, there is an advantage that the service life can be extended.

Further, since a large stress does not act on the die cylinder and the anvil cylinder at one time, the service life can be extended without increasing the mechanical strength of the bearings and the like of both cylinders, and miniaturization and cost reduction can be achieved. . Furthermore, when adopting a configuration in which an anvil made of a urethane material is wound around the anvil cylinder, the lateral punching blade is inclined with respect to the axis of the die cylinder. The cutting edge of the side punching blade can be changed. by this,
It is possible to prevent the occurrence of partial unevenness on the surface due to the bite of the cutting edge of the horizontal punching blade into the anvil, thereby preventing the problem that the ruled blade does not make a good score line. In the "hard cut" type, vibration and damage to the punching blade can be prevented. Further, punching suitable for the sheet material can be performed with the die cylinder and the anvil cylinder in the inclined posture or the reference posture according to the specifications of the sheet material.

When the center in the longitudinal direction of a horizontal punching blade or a group of horizontal punching blades for punching the horizontal punching line on the front end side of the sheet material reaches the punching position of the sheet material, the center is supplied from the conveying device. By setting it to match the center of the sheet material in the sheet width direction, the printing position does not shift in the width direction with respect to the punching position, and the width of the trim portion on both sides in the width direction generated at the time of punching is made uniform. obtain.
The mounting hole of the curved board is provided in advance at a position where when the board is fixed to the die cylinder, the center in the longitudinal direction of the front horizontal punching line coincides with the center in the sheet width direction of the sheet material as described above. As a result, the die can be easily attached.

A horizontal ruled blade for forming a horizontal rule on the sheet material is as follows:
By inclining with respect to the axis of the die cylinder, when applying horizontal creases to the sheet material with the horizontal ruled blades, since the entire length of the blades does not abut against the sheet material at once, the horizontal ruled edge is applied to the sheet material. This has the advantage that it is possible to prevent the cracks from entering strongly and to prevent the occurrence of cracks in the ruled lines. Further, since a large impact load is not applied to the horizontal ruled blade, there is an advantage that its service life can be extended. Further, since the sheet material can be supplied to the punching device in the reference posture, the device disposed on the upstream side of the punching device can use a conventionally used configuration, It can be introduced without major equipment changes.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram showing a printer die cutter employing a punching device according to a preferred embodiment of the present invention.

FIG. 2 is a schematic plan view illustrating a main part of the printer die cutter according to the embodiment.

FIG. 3 is a schematic plan view of the punching device according to the embodiment.

FIG. 4 is a schematic side view of the punching device according to the embodiment.

FIG. 5 is a schematic plan view showing the die cylinder according to the embodiment and the curved board of the die removed from the cylinder in a developed state.

FIG. 6 is a schematic plan view of a die cylinder on which a die according to the embodiment is wound.

FIG. 7 is a schematic perspective view of a die cylinder on which a die according to the embodiment is wound.

FIG. 8 is an explanatory diagram showing a state in which a sheet material is obliquely translated in a reference posture.

FIG. 9 is an explanatory diagram showing the center of the front side horizontal punching blade in the die according to the example.

FIG. 10 is an explanatory diagram showing a relationship between a mounting hole of a die cylinder and a mounting hole of a curved board according to the embodiment.

FIG. 11 is a bottom view of the sheet conveying apparatus according to the embodiment.

FIG. 12 is an explanatory diagram showing a sheet conveying device according to another embodiment together with a punching device.

FIG. 13 is an explanatory view showing a sheet conveying device according to still another embodiment together with a punching device.

FIG. 14 is a schematic view showing means for adjusting the movement of the die cylinder in the axial direction.

FIG. 15 is an explanatory view showing another example of a die.

FIG. 16 is a schematic view showing another embodiment of the punching device in an inclined posture.

FIG. 17 is a schematic view showing another embodiment of the punching device in a reference posture.

[Explanation of symbols]

10 punching device 11 sheet material 1
1a Long side (front edge) 11b Short side (side edge) 14 Sheet conveying device 1
6 Punching blade 16a Horizontal punching blade 16b Vertical punching blade 1
7 Curved board 17a Mounting hole 18 Die 1
9 Die cylinder 21 Anvil cylinder 24 Horizontal punching line 25 Vertical punching line 26 Horizontal rule 2
7 vertical ruler 28 horizontal ruler blade 29 vertical ruler blade 4
0 Sheet Conveyor 42 Sheet Conveyor A Leading Edge of Horizontal Punching Blade 50 Punching Blade 50a Horizontal Punching Blade 5
0b Vertical punching blade B Leading edge of vertical punching blade C Center of horizontal punching blade C 'Center of virtual line C ₁ Machine center of sheet feeder C ₂ Machine center of printer unit C ₃ Machine center of punching device L ₁ Axis L ₂ Reference line P
Inclination angle of the vertical punching blade in the inclination angle theta ₁ "embodiment of the horizontal punching blade in the inclination angle theta ₁ 'embodiment of a die cylinder in the direction L ₃ horizontal baseline L ₄ vertical baseline theta ₁ embodiment the sheet feeding

Claims (15)

[Claims] 1. A sheet material (11) having a reference posture in which a front edge (11a) in a sheet feeding direction (P) is parallel to a reference line (L ₂ ) orthogonal to the feeding direction (P). To the reference line (L ₂ ) with respect to the axis (L
₁ ) is fed between a pair of mutually oppositely rotating die cylinders (19) and anvil cylinders (21) arranged to incline by a required angle (θ ₁ ), and the sheet material (11) While obliquely moving the cylinder toward the downstream side while maintaining the reference posture in accordance with the inclination angle of the two cylinders (19, 21), the punching blade disposed on the die cylinder (19)
(16) by the reference line (L ₂₎ parallel to the horizontal punching line (24) and the sheet feeding direction (P) parallel to the longitudinal stamped lines of the sheet material characterized in that so as to punch the (25) Punching method. 2. A sheet material (11) having a reference posture in which a front edge (11a) in a sheet feeding direction (P) is parallel to a reference line (L ₂ ) orthogonal to the feeding direction (P). To the reference line (L ₂ ) with respect to the axis (L
₁ ) between the die cylinder (19) and the anvil cylinder (21), which rotate in opposite directions and form a pair arranged so as to be inclined by the required angle (θ ₁ ), via the transfer device (14). The conveying device (14) supplies the upstream side of the sheet material (11) which is transferred to the downstream side by the rotation of the two cylinders (19, 21).
The sheet material (11) is obliquely translated toward the downstream side in the reference posture in accordance with the inclination angle of the two cylinders (19, 21) by holding the sheet material (11) in a state where the parallel movement is allowed. A horizontal punching line (24) parallel to the reference line (L ₂ ) and a vertical punching line (25) parallel to the sheet feeding direction (P) by a punching blade (16) disposed on the die cylinder (19). A sheet material punching method, characterized in that a sheet material is punched. 3. A sheet material (11) having a reference posture in which a front edge (11a) in a sheet feeding direction (P) is parallel to a reference line (L ₂ ) orthogonal to the feeding direction (P). To the reference line (L ₂ ) with respect to the axis (L
₁ ) is supplied between a pair of oppositely rotating die cylinders (19) and anvil cylinders (21) arranged to incline by a required angle (θ ₁ ), and the die cylinders (19) And an end located on an end side of the cylinder (19) inclined toward the upstream side in the sheet feeding direction.
(A) is inclined so as to be on the leading side in the rotation direction of the die cylinder (19), and the axis line passes through the leading end (A).
(L ₁₎ and the angle of inclination with respect to parallel horizontal base line _{(L 3) (θ 1 '} ) is the axis
(L ₁ ) and the reference cylinder (L ₂ ) by the horizontal punching blade (16a) which is set to be substantially the same as the inclination angle (θ ₁ ), the die cylinder (19)
And a horizontal punching line (24) parallel to the front edge (11a) of the sheet material (11) obliquely translated toward the downstream side in the reference posture in accordance with the inclination angle of the anvil cylinder (21).
Is gradually punched from one end to the other end in the longitudinal direction, and the die cylinder (1) is provided by a vertical punching blade (16b) arranged in the die cylinder (19) and orthogonal to the horizontal punching blade (16a).
9) and while the sheet material (11) is obliquely translated in the reference posture according to the inclination angle of the anvil cylinder (21),
A sheet material characterized in that a vertical punching line (25) parallel to a side edge (11b) orthogonal to the front edge (11a) is gradually punched from one end in the longitudinal direction to the other end. Punching method. 4. A sheet material (11) in a reference position in which a front edge (11a) in a sheet feeding direction (P) is parallel to a reference line (L ₂ ) orthogonal to the feeding direction (P). To the reference line (L ₂ ) with respect to the axis (L
₁ ) between the die cylinder (19) and the anvil cylinder (21), which rotate in opposite directions and form a pair arranged so as to be inclined by the required angle (θ ₁ ), via the transfer device (14). The conveying device (14) supplies the upstream side of the sheet material (11) which is transferred to the downstream side by the rotation of the two cylinders (19, 21).
The sheet material (11) is obliquely translated toward the downstream side in the reference posture in accordance with the inclination angle of both cylinders (19, 21) by holding the sheet material (11) in a state that allows parallel movement in In the die cylinder (19), the end (A) located on the end side of the cylinder (19) that is inclined toward the upstream side in the sheet feeding direction of the cylinder (19) is rotated in the rotational direction of the die cylinder (19). And the leading edge (A)
Substantially the same as the inclination angle (theta ₁ ') is the axis (L ₁₎ and the reference line (L ₂₎ and the inclination angle of the (theta ₁₎ for through the axis (L ₁₎ and the parallel lateral base line (L ₃₎ The horizontal punching line (24) parallel to the front edge (11a) of the sheet material (11) by the horizontal punching blade (16a) set to
Is gradually punched from one end to the other end in the longitudinal direction, and a sheet material (11) is provided by a vertical punching blade (16b) arranged in the die cylinder (19) and orthogonal to the horizontal punching blade (16a). A sheet material characterized in that a vertical punching line (25) parallel to a side edge (11b) orthogonal to the front edge (11a) is gradually punched from one end in the longitudinal direction to the other end. Punching method. 5. The parallel movement of the sheet material (11) conveyed downstream by the rotating action of the die cylinder (19) and the anvil cylinder (21) by the suction action of the transfer device (14). 5. The method according to claim 2, wherein the sheet material is held in an allowable state. 6. A die cylinder rotating in mutually opposite directions.
(19) and the anvil cylinder (21) at a required angle (θ) with respect to a reference line (L ₂ ) whose axis (L ₁ ) is orthogonal to the sheet feeding direction (P).
₁₎ upon positioning the inclined posture in which only inclined, the reference attitude front edge of the sheet feeding direction (P) (11a) is parallel to the reference line (L ₂₎ between the two cylinders (19, 21) Sheet material (11) supplied through the conveying device (14) by the two cylinders (19,
21) Sheet material transferred downstream by the rotating action
By holding the upstream side of (11) in a state in which the parallel movement is allowed by the transfer device (14), the transfer device (14) obliquely moves toward the downstream side in the reference posture according to the inclination angle of both cylinders (19, 21). While moving, the punching blade (16) disposed on the die cylinder (19)
Reference line by (L ₂₎ parallel to the horizontal punching line (24) and the sheet feeding direction (P) parallel to the longitudinal stamped lines punching (25), the axis of the two cylinders (19, 21) (L ₁₎ When the cylinder is positioned in the reference posture parallel to the reference line (L ₂ ), both cylinders (19,
While moving the sheet material (11) of a single sheet supplied through the conveying device (14) in the reference posture during the reference posture while moving straight toward the downstream side in the reference posture, the die cylinder (19) ) to provided the punching blade (50) by the reference line (L ₂₎ parallel to the horizontal punching line (24) and parallel to the longitudinal stamped lines to the sheet feeding direction (P)
(25) A punching method for a sheet material, wherein the punching is performed. 7. An end (A) located at an end of the cylinder (19) that is inclined toward the upstream side in the sheet feeding direction with respect to the die cylinder (19) in the inclined posture. (19) is inclined so as to be on the leading side in the rotation direction, and the inclination angle (θ ₁ ′) with respect to the horizontal base line (L ₃ ) parallel to the axis (L ₁ ) through the leading end (A) is the axis. Angle of inclination between (L ₁ ) and reference line (L ₂ )
The die cylinder (19) is provided with a horizontal punching blade (16a) set to be substantially the same as (θ ₁ ) and a punching blade (16) including a vertical punching blade (16b) orthogonal to the horizontal punching blade (16a). A horizontal punching line (24) and a vertical punching line (25) are punched into the sheet material (11) by the punching blade (16), and the die cylinder (19) in the reference position is horizontal baseline the (L ₃₎ in parallel with that have been set transverse punching blade (50a) and lateral punching blade (50) comprising a vertical punching blade (50b) perpendicular to the punching blade (50a) in the die cylinder (19) 7. The sheet material punching method according to claim 6, wherein a horizontal punching line (24) and a vertical punching line (25) are punched in said sheet material (11) by said punching blade (50). 8. A die cylinder (19) in which a punching blade (16) is implanted on a curved board (17) is detachably wound and is driven to rotate in a predetermined direction. And an anvil cylinder (21) arranged in parallel with the cylinder (19) and driven to rotate in the opposite direction to the cylinder (19).
During (1), the sheet material (11) is fed in a reference position in which the front edge (11a) of the sheet feeding direction (P) is parallel to a reference line (L ₂ ) orthogonal to the feeding direction (P). ) Is supplied, and the sheet material (11) is punched in a required shape via the punching blade (16) .In the punching device, the die cylinder (19) and the anvil cylinder (21)
The axis (L ₁ ) is at the required angle (θ ₁ ) with respect to the reference line (L ₂ ).
The die (18) is provided with a horizontal punching blade (16a) for punching a horizontal punching line (24) parallel to a front edge (11a) of the sheet material (11) and the horizontal punching blade (16a). ) Perpendicular to the front edge (11a) of the sheet material (11)
And a vertical punching blade (16b) for punching a vertical punching line (25) parallel to a side edge (11b) perpendicular to the side edge (11b), and the die (18) for the die cylinder (19) is provided with the horizontal punching blade (16). In the state where the end (A) located on the end side of the die cylinder (19) in the sheet feeding direction upstream in 16a) is inclined so as to be the leading side in the rotation direction of the cylinder (19). It is wound, the inclination angle of the lateral punching blade (16a) of the leading edge (a) through the axis (L ₁₎ and the horizontal punching blade for parallel horizontal base line _{(L 3) (16a) (} θ
₁ ′) is set to be substantially the same as the inclination angle (θ ₁ ) between the axis (L ₁ ) and the reference line (L ₂ ), and the rotation of the die cylinder (19) on the vertical punching blade (16b). Longitudinal punching blade (1) with respect to a vertical base line (L ₄ ) orthogonal to the horizontal base line (L ₃ ) through the leading end (B) in the direction.
The inclination angle of the (theta ₁ ") is 6b), the set axis (L ₁₎ and the reference line (L ₂₎ and the inclination angle of the (theta ₁₎ on substantially the same, the die and anvil cylinder cylinder (19) ( Between 21), the conveying device for supplying the sheet material (11) in a reference posture
(14) is characterized in that the sheet material (11) is configured to allow the parallel movement of the sheet material (11) when the sheet material (11) is conveyed while being pinched by both cylinders (19, 21). Sheet material punching equipment. 9. The conveying device (14) includes an air chamber (33) whose inside is in a negative pressure state, and the sheet material (11) sucked by a negative pressure formed inside the air chamber (33). The sheet according to claim 8, further comprising a conveying member (35) with which the sheet material (11) abutting on the conveying member (35) is conveyed by the driving force of the conveying member (35). Material punching equipment. 10. A center (C) in the longitudinal direction of a horizontal punching blade (16a) for punching a horizontal punching line (24) on the front edge side of the sheet material (11) is located at a punching position of the sheet material (11). The sheet material according to claim 8 or 9, wherein, when the sheet material arrives, the center (C) is set to substantially coincide with the center in the sheet width direction of the sheet material (11) supplied from the transport device (14). Punching equipment. 11. The longitudinal center (C ′) of all the horizontal punching blade groups for punching the horizontal punching line (24) on the front edge side of the sheet material (11) is located at the punching position of the sheet material (11). 10. The sheet according to claim 8, wherein the center (C ′) is set so as to substantially coincide with the center in the sheet width direction of the sheet material (11) supplied from the transport device (14) when the sheet arrives at Material punching equipment. 12. A machine center (C ₁ , C ₂ ) of a sheet feeding device (12) and a printer unit (13) arranged in series upstream of the conveying device (14) in the sheet feeding direction; The machine center (C ₃ ) of the device (10) is aligned and coincident with the sheet feeding direction (P), and the bending board (17) is fixed to the die cylinder (19) in the punching device (10). A plurality of mounting holes (17a) formed in the board (17) to be used are provided with the sheet material (11) in the curved board (17) fixed to the die cylinder (19) through the mounting holes (17a). When the center (C) in the longitudinal direction of the horizontal punching blade (16a) for punching the horizontal punching line (24) on the front edge side of the sheet material reaches the punching position of the sheet material (11), the center (C) is claim machine center of the punching device (10) and (C ₃₎ is provided at a position which substantially coincides 8, 9 or 10
A sheet material punching apparatus as described in the above. 13. A machine center (C ₁ , C ₂ ) of a sheet feeding device (12) and a printer unit (13) arranged in series upstream of the conveying device (14) in a sheet feeding direction; The machine center (C ₃ ) of the device (10) is aligned and coincident with the sheet feeding direction (P), and the bending board (17) is fixed to the die cylinder (19) in the punching device (10). A plurality of mounting holes (17a) formed in the board (17) to be used are provided with the sheet material (11) in the curved board (17) fixed to the die cylinder (19) through the mounting holes (17a). When the center (C ') in the longitudinal direction of all the horizontal punching blades (16a) for punching the horizontal punching line (24) on the front edge side of the sheet material (11) reaches the punching position of the sheet material (11), the center ( C ') a punching device (10) of the machine center (C ₃₎ and punching device of the sheet material of claim 8, 9 or 11, wherein is provided at a position which substantially coincide. 14. The die (18) is provided with the side punching blade (16).
a) and a vertical ruled blade (29) parallel to the vertical punching blade (16b), and the sheet material (11) is horizontally punched by the horizontal ruled blade (28). A horizontal ruled line (26) is formed parallel to the line (24), and a vertical punched line (2) is formed by the vertical ruled blade (29).
A vertical rule (27) parallel to 5) is formed.
14. The sheet material punching apparatus according to any one of 13). 15. An inclined posture in which the axis (L ₁ ) of the die cylinder (19) and the anvil cylinder (21) is inclined by a required angle (θ ₁ ) with respect to the reference line (L ₂ ). Axis
The sheet material punching apparatus according to claim 8, wherein the sheet material is configured to be positioned at a reference posture in which (L ₁ ) is parallel to the reference line (L ₂ ).